Niko 350-20054 Mode D'emploi page 22

350-20054 / 350-20055
4. MAINTENANCE
Dirt may prevent the presence detector from functioning properly. Therefore, always keep the lens clean and dry. Use a
damp cloth and water with some detergent to clean the lens. Never exert pressure to wipe the lens clean. The presence
detector should be replaced if the lens or other parts of the presence detector are defective.
5. TROUBLESHOOTING
Problem
The lighting/ventilator does not
switch on.
The lighting/ventilator does not
switch off.
After setting the lux value, the
presence detector remains
permanently on, regardless of the
setting.
22
Cause
Internal error.
Defective lamp/ventilator.
Incorrect wiring.
There is no power supply voltage on
the sensor.
Incorrectly set lux value.
Switch-off delay set too long.
The presence detector is still detecting
movement.
Power supply voltage fluctuations.
The presence detector is subject to
temperature fluctuations.
Internal error.
Solution
Switch the mains power off for at
least five seconds and then switch it
back on.
Test whether the lamp/ventilator itself
is still working.
Check the wiring against the wiring
diagram.
Check whether there is power supply
voltage on the sensor.
Ensure the lux value is set to the
desired light intensity.
Ensure the switch-off delay is not set
too long (using the TIME key).
Leave the detection zone to prevent to
presence detector from re-activating.
Ensure the power supply voltage is
constant.
Ensure the presence detector is not
pointed towards an object that may
cause temperature fluctuations,
such as air conditioning or a heating
installation.
Switch the mains power off for at
least five seconds and then switch it
back on.
EN